Hci

hpe_hba_cabling_check falsely issues a warning

After a routine update of a 6-node Nutanix cluster, a Nutanix Cluster Check (NCC) warning popped up indicating a problem with the SAS cabling. Running the check on the CLI offered some more details.

Running : health_checks hardware_checks disk_checks hpe_hba_cabling_check
[==================================================] 100%
/health_checks/hardware_checks/disk_checks/hpe_hba_cabling_check                                                                                   [ WARN ]
-----------------------------------------------------------------------------------------------------------------------------------------------------------+

Detailed information for hpe_hba_cabling_check:
Node 10.99.1.205:
WARN: Disk cabling for disk(s) S6GLNG0T610113 are detected at incorrect location(s) 3:251:8 respectively where each value in the location corresponds to box:bay
Node 10.99.1.202:
WARN: Disk cabling for disk(s) S6GLNG0T610203 are detected at incorrect location(s) 3:251:8 respectively where each value in the location corresponds to box:bay
Node 10.99.1.206:
WARN: Disk cabling for disk(s) S6GLNG0T610104 are detected at incorrect location(s) 3:251:8 respectively where each value in the location corresponds to box:bay
Node 10.99.1.201:
WARN: Disk cabling for disk(s) S6GLNG0T610248, S6GLNG0T610219, S6GLNG0T610220, S6GLNG0T610081, S6GLNG0T603894, S6GLNG0T603909, S6GLNG0T610222 are detected at incorrect location(s) 3:252:1, 3:252:7, 3:252:6, 3:252:2, 3:252:3, 3:252:4, 3:252:5 respectively where each value in the location corresponds to box:bay
Node 10.99.1.203:
WARN: Disk cabling for disk(s) S6GLNG0T610247 are detected at incorrect location(s) 3:251:8 respectively where each value in the location corresponds to box:bay
Node 10.99.1.204:
WARN: Disk cabling for disk(s) S6GLNG0T610213 are detected at incorrect location(s) 3:251:8 respectively where each value in the location corresponds to box:bay
Refer to KB 11310 (http://portal.nutanix.com/kb/11310) for details on hpe_hba_cabling_check or Recheck with: ncc health_checks hardware_checks disk_checks hpe_hba_cabling_check --cvm_list=10.99.1.205,10.99.1.202,10.99.1.206,10.99.1.201,10.99.1.203,10.99.1.204
+-----------------------+
| State         | Count |
+-----------------------+
| Warning       | 1     |
| Total Plugins | 1     |
+-----------------------+
Plugin output written to /home/nutanix/data/logs/ncc-output-latest.log

All six nodes were affected. The cluster is running for quite some time without any issues, and this issue never came up before. It appeared right after installing the latest patches.

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VMware jumps on the fast moving hyper-converged train

The whole story began with a tweet and a picture:

This picture  in combination with rumors about Project Mystic have motivated Christian Mohn to publish an interesting blog post. Today, two and a half months later, “Marvin” or project Mystic got its final name: EVO:RAIL.

What is EVO:RAIL?

Firstly, we have to learn a new acronym: Hyper-Converged Infrastructure Appliance (HCIA). EVO:RAIL will be exactly this: A HCIA. IMHO EVO:RAIL is VMwares try to jump on the fast moving hyper-converged train. EVO:RAIL combines different VMware products (vSphere Enterprise Plus, vCenter Server, Virtual SAN and vCenter Log Insight) along with EVO:RAIL deployment, configuration and management to a hyper-converged infrastructure appliance. Appliance? Yes, an appliance. A single stock keeping unit (SKU) including hardware, software and support. To be honest: VMware will no try to sell hardware. The hardware will be provided by partners (currently Dell, EMC, Fujitsu, Inspur, NetOne and SuperMicro).

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